1. The travel of flatulence from the rectum, along the canal formed by the crevice in the buttocks and the vaginal folds, through to thevagina, at which point it exits the body. Can be compared to a game of bowling where the fart bubble, represented by a “bowling ball,” is released with great force down the rectum, or “laneway,” only to get trapped in the gutter and released out the end, rather than travelling straight up the lane and knocking down pins.